CVE-2026-92727: EmbedPress <= 4.6.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'slidesShow' Block Attribute
The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'slidesShow' Block Attribute in all versions up to, and including, 4.6.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The slidesShow block attribute is interpolated into an unquoted data-carousel-options HTML attribute, allowing a payload containing spaces to break out of the attribute and inject additional DOM attributes such as onfocus event handlers onto the wrapper element.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker needs an authenticated WordPress account with Contributor-level permissions or higher. They must be able to create or modify content containing the affected slidesShow block attribute.
When does the injected script execute?
The payload is stored in an injected page and executes whenever a user accesses that page. The vulnerable attribute can be broken out of to add DOM attributes such as onfocus handlers to the wrapper element.
Which versions are affected?
All EmbedPress versions up to and including 4.6.6 are affected.